Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
Described by Nelson, C.R. & Baumann, R.W. (1990) New winter stoneflies (Plecoptera: Capniidae) from the coast range of California. The Pan-Pacific Entomologist 66, 301–306.